Horseshoe.



J H. KIEFFER. HORSESHOE. APPLICATION FILED JAN. 12, 1911.

Patented Ma 2, 1911.

FAENT FTC.

JOHN H. KIEFFER, OF ALLENTOWN, EENNSYLVANIA.

HORSESHOE.

Specification of Letters Patent.

Patented May 2, 1911.

Application filed January 12, 1911. Serial No. 602,300.

To all whom it may concern:

Be it known that 1, JOHN H. Kinrrnn, a citizen of the United States, residing at Allentown, in the county of Lehigh and State of Pennsylvania, have invented a new and useful Horseshoe, of which the following is a specification.

This invention relates to farriery, and more especially to removable calks which are attached to the horse shoe by means of bolts; and the object. of the same is to improve the means of attachment To this end the invention consists in the details of construction hereinafter more fully described and claimed and as shown in the drawing wherein Figure 1 is a bottom plan view of this improved horse shoe and its calks attached. Fig. 2 is an edge view of the same. Figs. 3 and 4 are sections on the lines 3-3 and 4-4 of Fig. 1 respectively. Fig. 5 is a detail in side elevation of the bolt used in the toe calk. Fig. 6 is a perspective view 'of the toe calk.

In the drawings the numeral 10 designates the horse shoe whose lower side acrossthe toe is cut away or grooved as at 15, with the rear wall of the groove undercut as at 11, and whose heel ends are cut away or transversely grooved as at 16 with their rear walls undercut as at 12. Said rear walls have holes o'through them, and the rear wall 11 of the front groove 15 has a central hole 5 through it also. The bases of said cut away portions or grooves are fiat as best seen in Figs. 3 and 4:, and preferably inclined upward and rearward as also therein illustrated.

The calks used in connection with this shoe are cut from triangular metal (preferably tempered after they are formed) and the triangle may be of any approved shape, an isosceles triangle being shown for the toe calk 13, and right-angled triangles for the heel calks 14, although I do not wish to be confined in this respect. All calks have through their wider edges and at the center of their length notches which in the toe calk are preferably rectangular as shown at 3 in Fig. 6. The gist of the present invention lies in the specific means adapted for detachably attaching these calks to a horse shoe formed as described above.

The attachment for the toe calk consists of a bolt 18 (as best seen in Fig. 5) whose shank is threaded, then made square as at 8,

I and then formed with a head 17 elongated laterally as best seen in Fig. 1 and has an undercut face 7 as shown; 20 is a locking washer adapted to be slipped on to the shank of this bolt, and 19 is its nut. Obviously the toe calk 13 is laid in the groove 15, then the bolt is brought into place and its shank inserted through the notch 3 in the calk and through the hole 5 in the rear wall 11 of the groove until its undercut face 7 bears on the front face of the calk, and then the washer and nut are applied in a manner which will be best seen from Fig. 1.

The attachment for each heel calk is by means of a bolt 22 having a head 23 elongated laterally to a sufiicient degree to pass across the bottom of either heel end of the shoe 10 and upturned at its extremities into ears 2 which are purposely elevated so that they shall pass along the edges of the shoe and are preferably elongated to the rear so that they shall also pass along the ends of the calks 14. Their function is obviously to prevent the bolt head from lateral movement with respect to the shoe, as well as to prevent the calk from lateral. movement with respect to the bolt head although its notch would produce that result the same as does the notch 3 of the toe calk 13. The latter, being held by a considerably elongated bolt head 17, does not need the ears 2, and they are purposely omitted in order to preserve the rounded contour of the shoe at its front end. Each bolt 22 is passed through the notch in the calk and the hole 6 in the rear wall of the groove 16, and then a looking washer 20 and a nut 24 are applied as will be clear. Any form of locking washer may be used in this connection, or it may be replaced by a lock nut without departing from the spirit of my invention.

It is obvious that this improved horse shoe is intended for use only when the oalks are attached thereto, but the invention lies in the specific manner of detachably connecting them therewith so as to permit their removability or replacement when they become worn.

What is claimed as new is 1. The combination with a horse shoe having a transverse groove in its lower face, and a hole through the rear wall of the groove at right angles to its length; of a triangular calk adapted to rest at its base on the bottom of said groove and at its rear face against the rear wall thereof and having a notch through its body across its base, a bolt whose shank passes through said notch and hole and whose head is laterally elongated and shaped to conform with the front face of the calk, and a nut 011 the threaded end of the bolt.

2. The combination with a horse shoe having a transverse groove in its lower face with the rear wall of the groove undercut, and a hole through said wall at right angles to the length of the groove; of a triangular calk adapted to rest at its base on the bottom of said groove and at its rear face against said undercut wall thereof and having a notch through its body across its base, a bolt whose shank passes through said notch and hole and whose head is laterally elongated and shaped to conform with the front face of the calk, and a nut on the threaded end of the bolt.

3. The combination with a horse shoe having a groove across the lower face of its heel base, a bolt whose shank passes through said notch and hole and whose head is laterally elongated and shaped to conform with the front face of the calk, ears at the extremities of said head and rising above it and sliding against the sides of the horse shoe, and a nut and locking device on the threaded end of the bolt.

In testimony that I claim the foregoing as my own, I have hereto afliXed my signature in the presence of two witnesses.

JOHN H. KIEFFER.

Ht-nesses:

lV. M. Loni) CHAS. F. ROTH.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

